How much limestone will you need to neutralize lakes, using Snells law formula, and how would you draw that out?

To clarify, it seems there might be some confusion in your question. Snell's law is a formula used to describe how light waves refract when passing through the interface between two different transparent media. It is not directly related to neutralizing lakes using limestone. However, I can explain how limestone can be used to neutralize acidic lakes, and outline a general approach to determine the amount of limestone needed.

Limestone is often used to counteract acidification in lakes caused by acid rain or other factors. It contains calcium carbonate (CaCO3), which reacts with acids in the water to form water, carbon dioxide, and a soluble calcium salt, ultimately neutralizing the acidity.

To determine the amount of limestone required to neutralize a lake, you would typically follow these steps:

1. Measure the pH: Start by taking water samples from different areas of the lake and measure their pH levels. pH is a measure of acidity or alkalinity, and lakes with a pH below 7 are considered acidic.

2. Calculate the acidity: Calculate the acidity of the lake by determining the difference between the desired pH and the measured pH. This will give you the amount of acid that needs to be neutralized.

3. Convert acidity to equivalent calcium carbonate: Convert the acidity value to its equivalent amount of calcium carbonate. This is done by multiplying the acidity value by a correction factor which depends on the specific acid present in the lake. The correction factor can be found in various tables or obtained from experts in water chemistry.

4. Determine the limestone requirement: Finally, divide the equivalent calcium carbonate value by the calcium carbonate content (in percentage) of the limestone you are using. This will give you the weight of limestone required to neutralize the lake.

Regarding drawing it out, determining the amount of limestone needed usually involves calculations and is not visually drawn out. However, you can map out the lake and mark the sampling locations where you collect water samples for pH measurements.

Remember, the process described above is a general guideline, and for accurate calculations, it is advisable to consult with experts in water chemistry or environmental science who can provide more specific guidance based on the characteristics of the lake and limestone being used.